Large Study Confirms Vitamin D Does Not Reduce Risk of Depression in Adults (Mass General press release):
Vitamin D supplementation does not protect against depression in middle-age or older adulthood according results from one of the largest ever studies of its kind … “There was no significant benefit from the supplement for this purpose. It did not prevent depression or improve mood,” says Olivia I. Okereke, MD, MS, of the Massachusetts General Hospital (MGH) Psychiatry Department.